A new development in pharmaceuticals at the molecular level
Introduction: The entry of nanotechnology into the world of medicines
In the last few decades, technological advances, especially at the nanoscale, have had a tremendous impact on various industries; but among them, the pharmaceutical industry has been one of the biggest beneficiaries. Nanotechnology has not only changed the path of drug discovery and development, but has also significantly optimized pharmaceutical raw materials.
In this article, we examine the role of nanotechnology in the improvement, production, and innovation in the field of pharmaceutical raw materials.
What is nanotechnology?
Nanotechnology is the science that deals with the design, synthesis, and application of materials at the nanometer scale (typically 1 to 100 nanometers). At these scales, materials exhibit completely different physical, chemical, and biological properties than their macroscopic counterparts.
Pharmaceutical raw materials and their challenges
Active Pharmaceutical Ingredients (APIs) and other components of a drug face challenges:
- Low stability to light, heat or moisture
- Poor absorption in the body (low bioavailability)
- Low solubility
- Cytotoxicity
- Requires high dose to be effective
This is where nanotechnology comes into play.
How does nanotechnology help pharmaceuticals?
- Increasing drug solubility and absorption (Bioavailability)
Many APIs are poorly soluble in water. By nanoparticulateizing active ingredients, their surface area in contact with the body’s internal environment increases, thereby improving their solubility and absorption.
For example: The anti-cancer drug “paclitaxel” has been released in a nano-formulation (NanoPac) without the need for toxic solvents.
- Targeted Drug Delivery
Using nanocarriers, drugs can be delivered specifically to diseased cells or tissues (e.g., cancer cells) without affecting healthy cells. This reduces side effects and increases efficacy.
Examples: lipid nanoparticles, dendrimers, carbon nanotubes, nanocapsules
- Greater chemical and physical stability
By packaging raw materials in nanostructures, they can be protected from photo or thermal degradation.
- Reducing the dosage of the drug
Because nanoforms are more effective, the need for high doses of the drug is reduced, which reduces cost and side effects.
- Controlled Release
Nanoforms can be programmed to release the drug slowly, rapidly, or in response to a specific factor (e.g., stomach pH or body temperature).
The role of nanotechnology in improving pharmaceutical excipients
Nanotechnology has not only improved APIs, but has also revolutionized the field of pharmaceutical excipients:
- Nanoemulsions to increase drug stability
- Biocompatible polymer nanoparticles as carriers
- Nanogels for topical drugs with better absorption
Real examples of nanomedicines in the global market
| Drug Name | Application | Nanotechnology Used |
| Doxil | سرطان تخمدان | لیپوزوم نانویی |
| Abraxane | Breast and lung cancer | Albumin nanoparticles |
| BressaGen | Type 2 Diabetes | Polymer Nanoparticles |
Benefits of nanotechnology in the development of pharmaceutical raw materials
- Improving the quality and effectiveness of medicine
- Reducing treatment costs by reducing dosage
- Improving the patient experience
- Possibility of designing new drugs with specific mechanisms
- Facilitating entry into international markets through advanced formulations
Challenges and considerations in applying nanotechnology
- Standardization: Accurate and reliable methods are needed to evaluate nanomedicines.
- Safety: Some nanoparticles may cause unwanted reactions.
- Production cost: Nanotechnology on an industrial scale is still more expensive than traditional methods.
- Food and Drug Administration (FDA/EMA) regulations: Nanoforms require special approvals and safety testing.
The future of nanotechnology in pharmaceuticals
It is predicted that in the near future, more than 50% of new drugs will be developed based on nanotechnology. Nanotechnology will also find a more prominent place in the fields of vaccines, antiviral drugs, smart antibiotics and gene therapies.
Conclusion
With its entry into the field of pharmaceutical raw materials, nanotechnology has not only increased the quality of drugs, but also enabled new, personalized, and safer treatments. The future of the pharmaceutical industry, closely linked to nanotechnology, is on the path to sustainable and intelligent transformation.